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Category:   Application (Generic)  >   Adobe Acrobat/Reader Vendors:   Adobe Systems Incorporated
(Red Hat Issues Fix) Adobe Acrobat Temporary File Race Condition in 'acroread' Wrapper Script Lets Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1020531
SecurityTracker URL:  http://securitytracker.com/id/1020531
CVE Reference:   CVE-2008-0883   (Links to External Site)
Date:  Jul 21 2008
Impact:   Execution of arbitrary code via local system, Modification of system information, Modification of user information, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 8.1.2
Description:   A vulnerability was reported in Adobe Acrobat Reader for Linux. A local user can obtain elevated privileges on the target system.

The "acroread" wrapper script uses unsafe temporary files (in '/tmp') when processing SSL certificates. A local user can gain elevated privileges.

SUSE reported this vulnerability.

Impact:   A local user can modify files on the target system to gain elevated privileges on the target system.
Solution:   Red Hat has released a fix.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0641.html

Vendor URL:  www.adobe.com/support/security/advisories/apsa08-02.html (Links to External Site)
Cause:   Access control error, State error
Underlying OS:   Linux (Red Hat Enterprise)

Message History:   This archive entry is a follow-up to the message listed below.
Mar 4 2008 Adobe Acrobat Temporary File Race Condition in 'acroread' Wrapper Script Lets Local Users Gain Elevated Privileges



 Source Message Contents

Date:  Mon, 21 Jul 2008 09:48:33 -0400
Subject:  [RHSA-2008:0641-02] Critical: acroread security update


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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Critical: acroread security update
Advisory ID:       RHSA-2008:0641-02
Product:           Red Hat Enterprise Linux Extras
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0641.html
Issue date:        2008-07-21
CVE Names:         CVE-2008-0883 CVE-2008-2641 
=====================================================================

1. Summary:

Updated acroread packages that fix various security issues are now
available for Red Hat Enterprise Linux 3 Extras, 4 Extras, and 5 Supplementary.

This update has been rated as having critical security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AS version 3 Extras - i386, x86_64
Red Hat Desktop version 3 Extras - i386, x86_64
Red Hat Enterprise Linux ES version 3 Extras - i386, x86_64
Red Hat Enterprise Linux WS version 3 Extras - i386, x86_64
Red Hat Enterprise Linux AS version 4 Extras - i386, x86_64
Red Hat Desktop version 4 Extras - i386, x86_64
Red Hat Enterprise Linux ES version 4 Extras - i386, x86_64
Red Hat Enterprise Linux WS version 4 Extras - i386, x86_64
RHEL Desktop Supplementary (v. 5 client) - i386, x86_64
RHEL Supplementary (v. 5 server) - i386, x86_64

3. Description:

Adobe Acrobat Reader allows users to view and print documents in Portable
Document Format (PDF).

An input validation flaw was discovered in a JavaScript engine used by
Acrobat Reader. A malicious PDF file could cause Acrobat Reader to crash
or, potentially, execute arbitrary code as the user running Acrobat Reader.
(CVE-2008-2641)

An insecure temporary file usage issue was discovered in the Acrobat Reader
"acroread" startup script. A local attacker could potentially overwrite
arbitrary files that were writable by the user running Acrobat Reader, if
the victim ran "acroread" with certain command line arguments.
(CVE-2008-0883)

All acroread users are advised to upgrade to these updated packages, that
contain Acrobat Reader version 8.1.2 Security Update 1, and are not
vulnerable to these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

436263 - CVE-2008-0883 acroread: insecure handling of temporary files
452632 - CVE-2008-2641 acroread: input validation issue in a JavaScript method

6. Package List:

Red Hat Enterprise Linux AS version 3 Extras:

i386:
acroread-8.1.2.SU1-2.i386.rpm
acroread-plugin-8.1.2.SU1-2.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.i386.rpm

Red Hat Desktop version 3 Extras:

i386:
acroread-8.1.2.SU1-2.i386.rpm
acroread-plugin-8.1.2.SU1-2.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.i386.rpm

Red Hat Enterprise Linux ES version 3 Extras:

i386:
acroread-8.1.2.SU1-2.i386.rpm
acroread-plugin-8.1.2.SU1-2.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.i386.rpm

Red Hat Enterprise Linux WS version 3 Extras:

i386:
acroread-8.1.2.SU1-2.i386.rpm
acroread-plugin-8.1.2.SU1-2.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.i386.rpm

Red Hat Enterprise Linux AS version 4 Extras:

i386:
acroread-8.1.2.SU1-2.el4.i386.rpm
acroread-plugin-8.1.2.SU1-2.el4.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el4.i386.rpm

Red Hat Desktop version 4 Extras:

i386:
acroread-8.1.2.SU1-2.el4.i386.rpm
acroread-plugin-8.1.2.SU1-2.el4.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el4.i386.rpm

Red Hat Enterprise Linux ES version 4 Extras:

i386:
acroread-8.1.2.SU1-2.el4.i386.rpm
acroread-plugin-8.1.2.SU1-2.el4.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el4.i386.rpm

Red Hat Enterprise Linux WS version 4 Extras:

i386:
acroread-8.1.2.SU1-2.el4.i386.rpm
acroread-plugin-8.1.2.SU1-2.el4.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el4.i386.rpm

RHEL Desktop Supplementary (v. 5 client):

i386:
acroread-8.1.2.SU1-2.el5.i386.rpm
acroread-plugin-8.1.2.SU1-2.el5.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el5.i386.rpm
acroread-plugin-8.1.2.SU1-2.el5.i386.rpm

RHEL Supplementary (v. 5 server):

i386:
acroread-8.1.2.SU1-2.el5.i386.rpm
acroread-plugin-8.1.2.SU1-2.el5.i386.rpm

x86_64:
acroread-8.1.2.SU1-2.el5.i386.rpm
acroread-plugin-8.1.2.SU1-2.el5.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0883
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2641
http://www.redhat.com/security/updates/classification/#critical

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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